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TLV1117LV28DCYR

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs tlv1117lv28dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
pads.json symbol: bind pad 4 (OUT), which had no pin. The footprint carries the pad and page.json described it as "Tab", but no symbol pin resolved to it - so KiCad emitted no connection and the pad was inert copper in Fusion. On this part that pad is the thermal path. Name and type taken from the page's own entry; the entry is renumbered to the pad the footprint actually has, so page, symbol and footprint agree. · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 11d ago
README.md tlv1117lv28dcyr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 15d ago
tlv1117lv28dcyr-etched.fit.json tlv1117lv28dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
tlv1117lv28dcyr-etched.glb tlv1117lv28dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
tlv1117lv28dcyr-etched.step tlv1117lv28dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
tlv1117lv28dcyr.glb Publish 0.1.0 · Ray 1mo ago
tlv1117lv28dcyr.kicad_mod fix footprint: SOT-223-3_TabPin2 -> SOT-223 (pad_count, 4 pins) · Ray 1mo ago
tlv1117lv28dcyr.kicad_sym symbol: bind pad 4 (OUT), which had no pin. The footprint carries the pad and page.json described it as "Tab", but no symbol pin resolved to it - so KiCad emitted no connection and the pad was inert copper in Fusion. On this part that pad is the thermal path. Name and type taken from the page's own entry; the entry is renumbered to the pad the footprint actually has, so page, symbol and footprint agree. · Ray 1mo ago
tlv1117lv28dcyr.lbr symbol: bind pad 4 (OUT), which had no pin. The footprint carries the pad and page.json described it as "Tab", but no symbol pin resolved to it - so KiCad emitted no connection and the pad was inert copper in Fusion. On this part that pad is the thermal path. Name and type taken from the page's own entry; the entry is renumbered to the pad the footprint actually has, so page, symbol and footprint agree. · Ray 1mo ago
tlv1117lv28dcyr.step Publish 0.1.0 · Ray 1mo ago

TLV1117LV28DCYR

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4

TLV1117LV28DCYR from Texas Instruments, in a SOT-223-4. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin. Common return for the regulator; connect directly to the system ground plane.
2 OUT power_out Regulated 2.8V output pin. Requires a 1 µF (min) ceramic output capacitor for stability; delivers up to 1A of load current with typical dropout of 455 mV at 1A (Vout ≥ 3.3V) / 570 mV at 1A (Vout < 3.3V).
3 IN power_in Unregulated input pin. Operates from 2V to 5.5V (absolute max 6V). Bypass with a 1 µF ceramic capacitor close to the pin.
Tab OUT power_out SOT-223 heat-slug tab, electrically connected to the OUT pin. Solder to a copper pour for thermal dissipation (θJA = 62.9 °C/W).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223-4
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • TLV1117LV28DCYR

CAD (KiCad official)

  • Symbol: TLV1117LV28DCYR
  • Footprint: Package_TO_SOT_SMD:SOT-223
  • 3D model: SOT-223-4 (KiCad packages3D, STEP)
  • 3D model files: tlv1117lv28dcyr-etched.step / tlv1117lv28dcyr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlv1117lv28dcyr.step / tlv1117lv28dcyr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 0f459b8f652927f7, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF